spi: add xtfpga SPI controller driver

[firefly-linux-kernel-4.4.55.git] / drivers / spi / Kconfig

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index ba9310bc9acb7449a91ccb59b8f7de5c09c5801d..c87475db0f7915119171676576df16daf78a71c1 100644 (file)
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -520,6 +520,19 @@ config SPI_XILINX
 
          Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
 
+config SPI_XTENSA_XTFPGA
+       tristate "Xtensa SPI controller for xtfpga"
+       depends on XTENSA && XTENSA_PLATFORM_XTFPGA
+       select SPI_BITBANG
+       help
+         SPI driver for xtfpga SPI master controller.
+
+         This simple SPI master controller is built into xtfpga bitstreams
+         and is used to control daughterboard audio codec. It always transfers
+         16 bit words in SPI mode 0, automatically asserting CS on transfer
+         start and deasserting on end.
+
+
 config SPI_NUC900
        tristate "Nuvoton NUC900 series SPI"
        depends on ARCH_W90X900